/*
- Copyright 2015 IoT.bzh
+ Copyright (C) 2016, 2017 "IoT.bzh"
author: José Bollo <jose.bollo@iot.bzh>
limitations under the License.
*/
+#include <stdio.h>
+#include <stdarg.h>
+
#include "verbose.h"
-#if !defined(NDEBUG)
+#if !defined(DEFAULT_VERBOSITY)
+# define DEFAULT_VERBOSITY Verbosity_Level_Warning
+#endif
+
int verbosity = 1;
+void (*verbose_observer)(int loglevel, const char *file, int line, const char *function, const char *fmt, va_list args);
+
+#define CROP_LOGLEVEL(x) ((x) < Log_Level_Emergency ? Log_Level_Emergency : (x) > Log_Level_Debug ? Log_Level_Debug : (x))
+
+#if defined(VERBOSE_WITH_SYSLOG)
+
+#include <syslog.h>
+
+static void _vverbose_(int loglevel, const char *file, int line, const char *function, const char *fmt, va_list args)
+{
+ char *p;
+
+ if (file == NULL || vasprintf(&p, fmt, args) < 0)
+ vsyslog(loglevel, fmt, args);
+ else {
+ syslog(CROP_LOGLEVEL(loglevel), "%s [%s:%d, function]", p, file, line, function);
+ free(p);
+ }
+}
+
+void verbose_set_name(const char *name, int authority)
+{
+ openlog(name, LOG_PERROR, authority ? LOG_AUTH : LOG_USER);
+}
+
+#elif defined(VERBOSE_WITH_SYSTEMD)
+
+#define SD_JOURNAL_SUPPRESS_LOCATION
+
+#include <systemd/sd-journal.h>
+
+static const char *appname;
+
+static int appauthority;
+
+static void _vverbose_(int loglevel, const char *file, int line, const char *function, const char *fmt, va_list args)
+{
+ char lino[20];
+
+ if (file == NULL) {
+ sd_journal_printv(loglevel, fmt, args);
+ } else {
+ sprintf(lino, "%d", line);
+ sd_journal_printv_with_location(loglevel, file, lino, function, fmt, args);
+ }
+}
+
+void verbose_set_name(const char *name, int authority)
+{
+ appname = name;
+ appauthority = authority;
+}
+
#else
-void verbose_error(const char *file, int line)
+
+#include <unistd.h>
+#include <errno.h>
+
+static const char *appname;
+
+static int appauthority;
+
+static const char *prefixes[] = {
+ "<0> EMERGENCY",
+ "<1> ALERT",
+ "<2> CRITICAL",
+ "<3> ERROR",
+ "<4> WARNING",
+ "<5> NOTICE",
+ "<6> INFO",
+ "<7> DEBUG"
+};
+
+static void _vverbose_(int loglevel, const char *file, int line, const char *function, const char *fmt, va_list args)
{
- syslog(LOG_ERR, "error file %s line %d", file, line);
+ int saverr = errno;
+ int tty = isatty(fileno(stderr));
+ errno = saverr;
+
+ fprintf(stderr, "%s: ", prefixes[CROP_LOGLEVEL(loglevel)] + (tty ? 4 : 0));
+ vfprintf(stderr, fmt, args);
+ if (file != NULL && (!tty || verbosity > 2))
+ fprintf(stderr, " [%s:%d,%s]\n", file, line, function);
+ else
+ fprintf(stderr, "\n");
}
+
+void verbose_set_name(const char *name, int authority)
+{
+ appname = name;
+ appauthority = authority;
+}
+
#endif
+void verbose(int loglevel, const char *file, int line, const char *function, const char *fmt, ...)
+{
+ va_list ap;
+
+ va_start(ap, fmt);
+ vverbose(loglevel, file, line, function, fmt, ap);
+ va_end(ap);
+}
+
+void vverbose(int loglevel, const char *file, int line, const char *function, const char *fmt, va_list args)
+{
+ if (verbose_observer) {
+ va_list ap;
+ va_copy(ap, args);
+ verbose_observer(loglevel, file, line, function, fmt, ap);
+ va_end(ap);
+ }
+ _vverbose_(loglevel, file, line, function, fmt, args);
+}
+